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USE WITH A MULTISYSTEM MEASUREMENT
INSTRUMENT
HySense
®
CX 197
37
ENG
Table 6: Order of magnitude of the permittivity for oil types:
Oil type
Descriptions
Permittivity ε
r
Mineral oil
HL, HLP, HLPD, HVLP,
HVLPD
2.0
– 2.4
Polyalphaolephine
(PAO)
HEPR
2.3
– 2.9
Synthetic esters.
Native oils
HEES / HETG
2.9
– 3.7
Polyglycols
HEPG
> 5
Phosphate esters
e.g. HFD-R
6
– 7
5.2.5 Display of the measurement values
If you are on the measurement menu (Figure 25), you can use the F1 key
(“DISPLAY”) to reach the measurement value table. Under this, the saved
measurement data for each metering point is saved. The display is done in
table form. The table consists of 8 windows that are displayed in brackets in the
yellow field in the header. You can switch among them by pressing the right or
left keys on the keyboard. The sets reflect the number of measurements.
Note
Determining permittivity for “own oil”
If you would like to specify the start value of the permittivity, a measurement can
be performed and then the measurement value of the permittivity entered in the
oil database.